Finding the Third Proportional to 1,870,216 and 4,039,372

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,216 : 4,039,372 = 4,039,372 : x
2. Step 2: Convert to fraction form
   1,870,216/4,039,372 = 4,039,372/x
3. Step 3: Cross multiply
   1,870,216x = 4,039,372 × 4,039,372
4. Step 4: Simplify right side
   1,870,216x = 16,316,526,154,384
5. Step 5: Solve for x
   x = 16,316,526,154,384/1,870,216
6. Step 6: Final answer
   x = 8,724,407.32